#include <stdio.h>
int main()
{
  printf("0xab => %d\n", (signed char)0xcd);
  
  printf("-6120 => %x\n", -6120);

  printf("-7310 => %x\n", -7310);

  printf("0xe3720000 => %d\n", 0xe3720000);

  int t = -7310*65536 - 6120;
  printf("result : %x\n", t);


  printf("result : %x\n", (signed short)0xabcd * (signed short)0x5678);
}
